Spacetime-varying couplings and Lorentz violation

Details Spacetime-varying couplings and Lorentz violation Spacetime-varying couplings and Lorentz violation

2002-11-30

arxiv.org/abs/astro-ph/0212003v1

Phys.Rev.D68:123511,2003

Astronomy and Astrophysics

Astrophysics

4 pages

Scientific paper

10.1103/PhysRevD.68.123511

Spacetime-varying coupling constants can be associated with violations of
local Lorentz invariance and CPT symmetry. An analytical supergravity cosmology
with time-varying fine-structure constant provides an explicit example.
Estimates are made for some experimental constraints.

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